What I was trying to imply is that even if your bare rim is perfectly balanced for a given tire & tube, that once you patch/replace a tube, or replace a tire, your wheel is going to be out of balance. I really doubt an unmodified, off-the-shelf tube or tire can possibly be balanced enough to not prove your rim-shaving exercise a waste of time.

If you're really as sensitive to wheel balance as you say, you're either an android or an audiophile.